#39531 [Bgs]: soft evaluation between integers and strings
| From: | jakobsg at gmail dot com | Date: | Fri, 17 Nov 2006 11:56:55 +0000 |
| Subject: | #39531 [Bgs]: soft evaluation between integers and strings | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-105170@lists.php.net to get a copy of this message | ||
ID: 39531
User updated by: jakobsg at gmail dot com
Reported By: jakobsg at gmail dot com
Status: Bogus
Bug Type: Variables related
Operating System: All
PHP Version: 4.4.4
New Comment:
OK, I think you missed the point. It's not the stringified zero ("0")
I'm talking about, it's the letter "o" that evaluates true when
compared with zero. The letter "o" is no where en the O-2 table. Sorry
if we have been talking about apples and bananas :-)
Previous Comments:
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[2006-11-17 10:49:01] mgf@php.net
Er -- yes it is. Table O-2, to be specific.
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[2006-11-16 21:07:15] jakobsg at gmail dot com
Is there some where in particular I should look?
It's not here:
http://www.php.net/manual/da/types.comparisons.php
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[2006-11-16 11:15:44] tony2001@php.net
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to
report
a bug at http://bugs.php.net/how-to-report.php
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[2006-11-16 11:08:28] jakobsg at gmail dot com
Description:
------------
This is pretty straight forward.
The soft evaluation (==) feature in php can be nice, personally I never
use it, but I acknowledge that it can be useful in some situations.
The result of the following evaluation however is not acceptable by any
means (even in soft evaluation):
0 == '0' (true, and acceptable)
0 == 'o' (true, really!!!)
0 == 'o' are equal ... Common - this can only lead to errors.
Best regards Jakob Simon-Gaarde
Reproduce code:
---------------
var_export(0=='o');
Expected result:
----------------
false
Actual result:
--------------
true
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Edit this bug report at http://bugs.php.net/?id=39531&edit=1